CN107222225A - A kind of distributing antenna system of digital modularization Larger Dynamic power output - Google Patents
A kind of distributing antenna system of digital modularization Larger Dynamic power output Download PDFInfo
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- CN107222225A CN107222225A CN201710396125.4A CN201710396125A CN107222225A CN 107222225 A CN107222225 A CN 107222225A CN 201710396125 A CN201710396125 A CN 201710396125A CN 107222225 A CN107222225 A CN 107222225A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/0057—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/005—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
- H04B1/0067—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with one or more circuit blocks in common for different bands
- H04B1/0071—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with one or more circuit blocks in common for different bands using a common intermediate frequency for more than one band
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0458—Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
- H04B2001/0416—Circuits with power amplifiers having gain or transmission power control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The present invention announces a kind of distributing antenna system of digital modularization Larger Dynamic power output power, the system includes signal interface unit, expanding element and transmitter unit, signal interface unit therein passes through hot swap type A/D interface plate, can direct-coupling information source digital interface or analog interface, next unit can be transferred to by the interface of three kinds of mediums after treatment；Expanding element is merged by coupling the signal of the interface unit of diverse location in digital intermediate frequency, and the transmitter unit module specified then selectively is routed to via simulation or digital interface；System can support the transmitter unit of high or low power simultaneously, then using the real-time gain control system on backstage, be determined from power between final antenna feeder position power and signal interface unit per gain all the way, it is ensured that the balance of system dynamic gain.The system can significantly solve the construction of equipment, safeguard and upgrade problem, technical characterstic and economic benefit with highly significant.
Description
Technical field
The present invention relates to signal covering and capacity technologies, and in particular to a kind of multiple services distributing antenna system, this is
System be particularly suitable for use in signal covering large complicated and demand complicated multi-service, the scene of multisystem, belong to last 100 meters
The category of broad sense access network.
Background technology
The development of radio communication, the standard of communication is more and more, and the physical space in communication overlay place is more and more crowded,
Under conditions of the network demand that the network equipment constantly updates with the continuous improvement of people is met, how to make full use of
Some infrastructure, improves the service life of the network equipment there is provided high-quality, stable and reliable network signal service, is network
The demand of signal suppliers all the time.
Distributing antenna system main at present is divided into two classes, and one kind is passive distributed antenna system, i.e. base station RRU is straight
The complicated antenna-feedback system of coupling is connect, another is exactly that base station RRU coupling active optical fiber distributed type antenna systems meet simple antenna feeder system again
The mode of system.All there is construction complicated, the rare problem of upgrade maintenance.
Therefore, multiple communication services can be supported very well and deposit by needing a kind of distributing antenna system badly, and construction maintenance is simple,
The upgrade maintenance problem of holding equipment is also wanted simultaneously, the problems such as reducing the energy consumption of equipment.
The content of the invention
The present invention provides a kind of distributing antenna system of digital modularization Larger Dynamic output:Including signal interface unit
(Multi-Interface Unit, MIU), expanding element (Router Extend Unit, REU) and transmitter unit
(Dynamic Power Application Point, DPAP) three basic modules;Described signal interface unit is a kind of
Modular simulation digital signal interface unit, including the adjustment of hot swap type modular simulation digital source interface board, automatic gain
Unit, signal merge and processing subelement, multimedia（Optical fiber, the class netting twine of 5 class 6, cable）Digital data transmission interface;Described
Expanding element is that Routing expansion unit, including multimedia data signal access interface, digital signal are merged in a kind of signal transmission
Fusion from unit, data signal route processing subelement, data signal distribution subelement, digital analogue signal transforming subunit and
Simulation numeral output interface;Described transmitter unit is that a kind of Larger Dynamic power signal transmitter unit is divided into small-power transmitter unit
(milliwatt of transmission power≤100,20dBm) and high-power transmitter unit (transmission power>100 milliwatts, 20dBm) two types, institute
Stating small-power transmitter unit pattern includes the input interface of simulation or data signal, signal processing unit and antenna；It is described big
Power emitting unit includes data signal input interface, and signal processing unit selects and suppressed the multiplexer of function with frequency
And output interface.
It is preferred that, the digital hot plug information source interface board of the modular simulation in described signal interface unit, directly
The frequency range of coupling analog signals is from 230MHz to 5800MHz, and the power grade of direct-coupling signal is≤80 watts（49dBm）;Institute
The digital hot plug information source interface board of the modular simulation in the signal interface unit stated, described data signal includes
CPRI, OBSAI, TCP/IP, 802.11.ac, 802.11.ax and custom protocol.
It is preferred that, each described signal interface unit at least includes n（1≤n≤8）Individual hot swap type modular simulation
Digital source interface board, each hot swap type analog and digital signal interface board supports a kind of including 2 interfaces.
It is preferred that, each described signal interface unit at least includes n hot swap type modular simulation digital source
Interface board, wherein 1≤n≤8, at least support the m interface boards with RJ45, wherein 1≤m≤8, at least supporting j has SFP
The interface board of optical fiber interface, wherein 1≤j≤8.
It is preferred that, the multimedia data signal output interface of each described signal interface unit includes n（n≤8）It is individual
Flank speed is 10Gbps SFP optical fiber interfaces, m（m≤4）Individual flank speed is 10Gbps RJ45 interfaces, j (j≤4) individual 75
Ohm CATV coaxial output line, above-mentioned port is the interface of signal transmission rather than system control signal itself.
It is preferred that, the digital hot plug information source interface board of the modular simulation in described signal interface unit, directly
The frequency range of coupling analog signals from 230MHz to 5800MHz, the power of direct-coupled analog signal from 100 milliwatts to 80 watts it
Between, direct-coupled signaling mode includes GSM, and CDMA, WCDMA, PCS, TD-LTE, LTE FDD, WiFi simulation signal are described
The digital hot plug information source interface board of the modular simulation in signal interface unit includes an AGC system, really
It is 100 microwatts between 1 watt to protect the digital hot plug information source interface power output of described modular simulation（I.e. -10dBm is arrived
30dBm）, the power of reality output can be configured by described AGC system, for the modularization mould
When intending digital hot plug information source interface board input power more than the power output set, the digital hot plug of described modular simulation
Described AGC system in information source interface board can be adjusted input power by multistage attenuation factor therein
To the output power value of needs；Set for being less than for the digital hot plug information source interface board input power of the modular simulation
Power output when, the described AGC system in the digital hot plug information source interface board of described modular simulation can
So that input power is adjusted to the output power value needed by multistage attenuation factor therein.
It is preferred that, described expanding element, is transmitted for signal rather than the input interface of system control at least includes n
Individual SFP optical fiber interfaces, m RJ45 interface and j CATV coaxial interface and corresponding interface board, wherein 1≤n≤4,1≤m≤
2,1≤j≤2。
It is preferred that, modular simulation digital signal interface unit has the feature of data signal and analog signal coupling, mould
Signal between block analog and digital signal interface unit and signal transmission fusion Routing expansion unit is transmitted as cabled digital letter
Number, the medium optical fiber of transmission, netting twine and cable；Signal transmission fusion Routing expansion unit and Larger Dynamic power signal transmitter unit
The signal of transmission is analog signal either data signal, signal transmission fusion Routing expansion unit and small-power Larger Dynamic power
Be of coupled connections the coupling with simulation or data signal between signal transmitter unit, remote DC feedback coupling.
It is preferred that, described expanding element, transmitted for signal rather than system control output interface, can be via not
With interface while output digit signals and analog signal.
It is preferred that, described expanding element, is transmitted for signal rather than the output interface of system control at least includes n
SFP optical fiber interfaces, m RJ45 interface and j CATV coaxial interface and corresponding interface board, wherein 1≤n≤8,1≤m≤4,
1≤j≤4。
It is preferred that, described expanding element and signal interface unit can support small-power and powerful transmitting simultaneously
Unit.
It is preferred that, the digital hot plug information source interface board of described modular simulation, can with direct-coupling base station signal, without
Need external relaxation equipment and multiplying arrangement, signal-conversion equipment between base station information source and the signal interface unit of the system.
It is preferred that, described automatic gain control, can be to the power amplification less than required value from module, can be to more than requiring
The power of value is decayed step by step, the integral multiple decibel that the amplitude decayed step by step is 2.
It is preferred that, described signal expansion module can be to n roads（n≥2）Enter with frequency and alien frequencies signal in digital intermediate frequency
Row and merging transmission.
It is preferred that, described signal expansion module in the frame head of signal framing, uses n-bit（n≥3）To demarcate information source
Information.
It is preferred that, described signal expansion module can be to the source routing of demarcation to the transmitter unit module specified.
It is preferred that, the system can adjust the gain of link in real time according to the power of final terminal antenna.
The present invention announces a kind of distributing antenna system of digital modularization Larger Dynamic power output power, the system bag
Signal interface unit, expanding element and transmitter unit are included, signal interface unit therein passes through hot swap type A/D interface
Plate, can direct-coupling information source digital interface or analog interface, can be transferred to after treatment by the interface of three kinds of mediums
Next unit；Expanding element is merged by coupling the signal of the interface unit of diverse location in digital intermediate frequency, then via simulation
Or digital interface is selectively routed to the transmitter unit module specified；System can support the transmitting list of high or low power simultaneously
Member, then using the real-time gain control system on backstage, comes from power between final antenna feeder position power and signal interface unit
It is determined that per gain all the way, it is ensured that the balance of system dynamic gain.The system can significantly solve the construction of equipment, safeguard and
Upgrade problem, technical characterstic and economic benefit with highly significant.
Brief description of the drawings
Fig. 1, a kind of digital modularization Larger Dynamic power output DAS system Organization Chart.
Fig. 2, signal interface unit input/output interface layout.
Fig. 3, signal interface unit schematic diagram.
Fig. 4, signal access unit automatic gain adjusting module.
Fig. 5, the information source of diverse location are converged by signal interface unit in expanding element.
Fig. 6, typical system configuration and signal flow direction.
Embodiment
The present invention provides a kind of distributing antenna system of digital modularization Larger Dynamic output,（Fundamental system framework is shown in
Fig. 1）The system signal interface unit（MIU）, expanding element（REU）And transmitter unit（DPAP）Three elementary cell compositions.Institute
The signal interface unit stated is a kind of modular simulation digital signal interface unit, analog signal and data signal input, numeral
Signal output, including hot swap type modular simulation digital signal interface plate, automatic gain adjustment unit, signal merge and handled
Unit, multimedia digital data transmission interface；Described expanding element, is that a kind of signal transmission is merged and Routing expansion unit,
Data signal is inputted, data signal and analog signal output, including the fusion of multimedia data signal access interface, digital signal
From unit, data signal route processing subelement, data signal distribution subelement, digital analogue signal transforming subunit and simulation
Digital output interface;Described transmitter unit is a kind of Larger Dynamic power signal transmitter unit, is divided into both of which, and pattern one is every
Channel output power is less than the low-power mode of 100 milliwatts, numeral or analog signal input, analog signal output, pattern two
It is more than the high power mode of 100 milliwatts, data signal input, analog signal output, described Larger Dynamic per channel output power
The low-power mode of power signal transmitter unit includes the input interface of simulation or data signal, signal processing unit and day
Line；The low-power mode of described Larger Dynamic power signal transmitter unit include data signal input interface, signal processing unit,
The multiplexer and output interface of function are selected and suppressed with frequency.
The data signal transmitted between the system unit supports signal interface unit（MIU）And expanding element（REU）It
Between transmission support TCP/IP, CPRI and OBSAI and customized agreement；Expanding element（REU）And transmitter unit（DPAP）It
Between the signal that transmits be data signal and analog signal, wherein analog signal includes radiofrequency signal and intermediate-freuqncy signal, data signal
Support TCP/IP, CPRI and OBSAI and customized agreement.
The signal interface unit of the system, is supported data signal and analog signal, is coupled in different interface board modes
System.The signal interface unit of the system, the digital signal interface of output supports optical fiber, the class twisted pair network cable of 5 class 6, CATV respectively
The coaxial cable interface refers to network transmission signal interface, rather than the control signal interface of equipment in itself.The extension of the system
The input signal interface of unit supports optical fiber, and the class twisted pair network cable of 5 class 6, CATV coaxial cables, interface refers to that network transmission is believed
Number interface, rather than the control signal interface of equipment in itself.
The input signal interface of the expanding element of the system supports optical fiber, and the class twisted pair network cable of 5 class 6, CATV coaxial cables are somebody's turn to do
Interface refers to network transmission signal interface, rather than the control signal interface of equipment in itself.The output of the expanding element of the system
Interface supports optical fiber, and the class twisted pair network cable of 5 class 6, CATV coaxial cables, interface refers to network transmission signal interface, Er Feishe
The standby control signal interface of itself.The system supports the source signal of diverse location to be coupled to after signal interface unit, in extension
Unit is converged, and is then communicated to the position for needing to cover.The CATV coaxial interfaces output simulation of the expanding element of the system
Intermediate frequency and radiofrequency signal, are coupled to small-power transmitter unit, to ensure the cost advantage of small-power transmitter unit.
Typical Disposition and the signal flow direction of system are shown in Fig. 6, from information source (2G, 3G, 4G base station RRU or BBU, Internet of Things mould
Group, private network, small base station, WAN etc.) output numeral or analog signal, coupled first with signal interface unit, pass through hot plug
Formula modular interface plate is connected into system, if analog signal, just the interface board of access simulation, then according to the work(of input signal
The power that rate and system need, starts automatic gain control function, power grade is adjusted into corresponding level, then passed through
Frequency modulation(PFM) module, by the signal modulation of up-downgoing to corresponding intermediate frequency, the intermediate-frequency band selection on total interface plate, by backstage
United Dispatching, it is ensured that preferable frequency selectivity can occur without mixed with the passage intermediate frequency selection of same interface board and distinct interface plate
Folded, up intermediate frequency range of choice is 110MHz-350MHz, and descending intermediate frequency range of choice is 370-610MHz, is each used
Interval between frequency range is 5MHz.
Analog signal intermediate frequency is linked into after backboard, by merging module, using certain strategy by corresponding intermediate frequency end
It is grouped together（Combination principle, is gathered using ADC）, then it is descending enter ADC sampling module, it is up to enter DAC modules,
Then the signal after conditioning of set digital interface plate coupling enters SOC module（FPGA or DSP etc.）Carry out numeral
The carry out queue combination of IF process, then all signals, framing is then communicated to backboard output interface.Signal interface unit
By optical fiber, 5 classes or 6 class Cat twisted-pair feeders, the class cable interface of CATV coaxial cables three are connected with expanding element.
Expanding element input three class mediums of support, optical fiber, 5 classes or 6 class twisted-pair feeders (Cat5, Cat6) and CATV are coaxial
Line, the output of expanding element has the simulation coaxial line interfaces of CATV, and digital interface is SFP and RJ45, the distinguishing feature of expanding element
It is the merging of the homogenous frequency signal and alien frequencies signal of the interface unit that can come from more than 2, to meet site of deployment from difference
The demand of the information source of physical address.The significantly feature of expanding element output, can also be simultaneously defeated in addition to supporting multiple interfaces
Go out numeral and analog intermediate frequency and radiofrequency signal, to provide the Economic competitive of equipment；The three of the distinguishing feature of expanding element are,
By having demarcated the sign of each information source in the frame head of each data frame, while also having demarcated support in the HID of each veneer of system
The type of information source, therefore the hardware route of source signal can be automatically configured on backstage.
The characteristics of high or low power transmitter unit is supported due to system simultaneously, to meet the uniformity of system gain, on backstage
Setting in, will not be because of size work(using the power of final antenna port as the dynamic equilibrium of the gain on calibration system Ge Gezi roads
Rate transmitter unit because transmission power difference cause gain mismatch.
Claims (17)
1. a kind of distributing antenna system of digital modularization Larger Dynamic power output power, it is characterised in that including signal
Interface unit, three basic modules of expanding element and transmitter unit;Described signal interface unit is a kind of modular simulation
Digital signal interface unit, including hot swap type modular simulation digital source interface board, automatic gain adjustment unit, signal are closed
And and processing subelement, multimedia digital data transmission interface;Described expanding element is that a kind of signal transmission fusion route expands
Unit is opened up, including the fusion of multimedia data signal access interface, digital signal handles sub single from unit, data signal route
Member, data signal distribution subelement, digital analogue signal transforming subunit and simulation numeral output interface;Described transmitter unit
It is that a kind of Larger Dynamic power signal transmitter unit is divided into small-power transmitter unit and high-power transmitter unit two types, it is described small
Power emitting unit pattern includes the input interface of simulation or data signal, signal processing unit and antenna；It is described high-power
Transmitter unit includes data signal input interface, and signal processing unit selects with frequency and suppresses the multiplexer of function and defeated
Outgoing interface.
2. the distributing antenna system of digital modularization Larger Dynamic power output according to claim 1, its feature exists
In the digital hot plug information source interface board of the modular simulation in described signal interface unit, direct-coupling analog signal
Frequency range from 230MHz to 5800MHz, the power grade of direct-coupling signal is≤80 watts;In described signal interface unit
The digital hot plug information source interface board of the modular simulation, described data signal includes CPRI, OBSAI, TCP/IP,
802.11.ac, 802.11.ax and custom protocol.
3. the distributing antenna system of digital modularization Larger Dynamic power output according to claim 1, its feature exists
In each described signal interface unit at least includes n（1≤n≤8）Individual hot swap type modular simulation digital source interface
Plate, each hot swap type analog and digital signal interface board supports a kind of including 2 interfaces.
4. the distributing antenna system of digital modularization Larger Dynamic power output according to claim 1, its feature exists
In each described signal interface unit at least includes n hot swap type modular simulation digital source interface board, wherein 1
≤ n≤8, at least support the m interface boards with RJ45, wherein 1≤m≤8, at least support j connecing with SFP optical fiber interfaces
Oralia, wherein 1≤j≤8.
5. the distributing antenna system of digital modularization Larger Dynamic power output according to claim 1, its feature exists
In the multimedia data signal output interface of each described signal interface unit includes n（n≤8）Individual flank speed is
10Gbps SFP optical fiber interfaces, m（m≤4）Individual flank speed is 10Gbps RJ45 interfaces, and the individual 75 ohm of CATV of j (j≤4) are same
Axle lead-out terminal, above-mentioned port is the interface of signal transmission rather than system control signal itself.
6. the distributing antenna system of digital modularization Larger Dynamic power output according to claim 1, its feature exists
In the digital hot plug information source interface board of the modular simulation in described signal interface unit, direct-coupling analog signal
Frequency range from 230MHz to 5800MHz, the power of direct-coupled analog signal is from 100 milliwatts to 80 watts, direct-coupling
Signaling mode include GSM, CDMA, WCDMA, PCS, TD-LTE, LTE FDD, WiFi simulation signal, the signaling interface list
The digital hot plug information source interface board of the modular simulation in member includes an AGC system, it is ensured that described mould
Block simulation numeral hot plug information source interface power output be 100 microwatts between 1 watt, the power of reality output can pass through institute
The AGC system stated is configured, big for the digital hot plug information source interface board input power of the modular simulation
When the power output of setting, the described automatic growth control in the digital hot plug information source interface board of described modular simulation
System can be adjusted input power to the output power value needed by multistage attenuation factor therein；For for the mould
When block simulation numeral hot plug information source interface board input power is less than the power output set, described modular simulation numeral
Described AGC system in hot plug information source interface board can be by multistage attenuation factor therein input work
Output power value of the rate regulation to needs.
7. the distributing antenna system of digital modularization Larger Dynamic power output according to claim 1, its feature exists
In described expanding element, is transmitted for signal rather than the input interface of system control at least connects including n SFP optical fiber
Mouthful, m RJ45 interface and j CATV coaxial interface and corresponding interface board, wherein 1≤n≤4,1≤m≤2,1≤j≤2.
8. the distributing antenna system of digital modularization Larger Dynamic power output according to claim 1, its feature exists
In modular simulation digital signal interface unit has the feature of data signal and analog signal coupling, modular simulation numeral
Signal between signal interface unit and signal transmission fusion Routing expansion unit is transmitted as cabled digital signal, the medium of transmission
Optical fiber, netting twine and cable；Signal transmission fusion Routing expansion unit and the signal of Larger Dynamic power signal transmitter unit transmission are
Analog signal either data signal, signal transmission fusion Routing expansion unit and small-power Larger Dynamic power signal transmitter unit
Between be of coupled connections the coupling with simulation or data signal, the coupling of remote DC feedback.
9. the distributing antenna system of digital modularization Larger Dynamic power output according to claim 1, its feature exists
In described expanding element, can be simultaneously defeated via distinct interface for the output interface of signal transmission rather than system control
Go out data signal and analog signal.
10. the distributing antenna system of digital modularization Larger Dynamic power output according to claim 1, its feature exists
In described expanding element, is transmitted for signal rather than the output interface of system control at least connects including n SFP optical fiber
Mouthful, m RJ45 interface and j CATV coaxial interface and corresponding interface board, wherein 1≤n≤8,1≤m≤4,1≤j≤4.
11. the distributing antenna system of digital modularization Larger Dynamic power output according to claim 1, its feature exists
In described expanding element and signal interface unit can support small-power and powerful transmitter unit simultaneously.
12. according to the distributing antenna system of digital modularization Larger Dynamic power output according to claim 2, it is special
Levy and be, the digital hot plug information source interface board of described modular simulation can be with direct-coupling base station signal, without in base
External relaxation equipment and multiplying arrangement, signal-conversion equipment between information source of standing and the signal interface unit of the system.
13. the distributing antenna system of digital modularization Larger Dynamic power output according to claim 6, its feature exists
In described automatic gain control, can be to the power amplification less than required value from module, can be to the power progress more than required value
Decay step by step, the integral multiple decibel that the amplitude decayed step by step is 2.
14. the distributing antenna system of digital modularization Larger Dynamic power output according to claim 7, its feature exists
In described signal expansion module can be to n roads（n≥2）Transmission is carried out and merged in digital intermediate frequency with frequency and alien frequencies signal.
15. the distributing antenna system of digital modularization Larger Dynamic power output according to claim 7, its feature exists
In described signal expansion module in the frame head of signal framing, uses n-bit（n≥3）To demarcate the information of information source.
16. according to claim 1, point of the digital modularization Larger Dynamic power output described in 7,15 any one claims
Cloth antenna system, it is characterised in that described signal expansion module, can be to the source routing of demarcation to the transmitter unit specified
Module.
17. the distributing antenna system of digital modularization Larger Dynamic power output according to claim 11, its feature
It is, the system, the gain of link can be adjusted in real time according to the power of final terminal antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710396125.4A CN107222225A (en) | 2017-05-27 | 2017-05-27 | A kind of distributing antenna system of digital modularization Larger Dynamic power output |
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| CN201710396125.4A CN107222225A (en) | 2017-05-27 | 2017-05-27 | A kind of distributing antenna system of digital modularization Larger Dynamic power output |
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| CN107222225A true CN107222225A (en) | 2017-09-29 |
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| CN201710396125.4A Pending CN107222225A (en) | 2017-05-27 | 2017-05-27 | A kind of distributing antenna system of digital modularization Larger Dynamic power output |
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| CN (1) | CN107222225A (en) |
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| CN103891160A (en) * | 2011-10-28 | 2014-06-25 | Adc长途电讯有限公司 | Distributed antenna system using time division duplexing scheme |
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